Logical Reasoning - Number Series - Discussion

Discussion Forum : Number Series - Type 2 (Q.No. 1)
Directions to Solve
Look carefully for the pattern, and then choose which pair of numbers comes next.

1.
28 25 5 21 18 5 14
11 5
10 7
11 8
5 10
10 5
Answer: Option
Explanation:
This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.
Discussion:
126 comments Page 13 of 13.

Raji said:   1 decade ago
Nice solution given from rohit.

Shreya said:   1 decade ago
Excellent logic.

M.s.kumar said:   1 decade ago
Good easy question. Look at carefully.

Rohit T George said:   1 decade ago
@star007

That is quite simple.

INTERPOLATION here means simply including the number without logic.

28 25 5 21 18 5 14
Here 5 is used as a median you can say remove the 5's
28 25 (diff 3)
21 18 (diff 3)
14 ? (diff 3)( ?=11)
Then the next number is 5 because of interpolation.

Star007 said:   1 decade ago
Interpolation of a random number - 5 ? Explain this please.

Raghavendra said:   1 decade ago
Please give the details of solution of this question because I cannot understand the your given clue.


Post your comments here:

Your comments will be displayed after verification.